module group_param
  use derived,only:GroupType,ReactionRateGroup
  implicit none

  ! number of user-specified group
  integer :: n_object_group
  ! type of the group
  type(GroupType),pointer,dimension(:) :: object_group

  ! number of react groups
  integer :: n_react_group
  ! groups for the reaction rates
  type(ReactionRateGroup),pointer,dimension(:) :: react_group

end module group_param
